baber/WOPTO huggingface dataset:
Patent GB-672625-A (GB)
Title: Improvements in and relating to hall effect synchroscopes
IPC: H02J3/42
Filed: 1950-11-29
Abstract: 672,625. Synchroscopes. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 29, 1950 [Dec. 14, 1949], No. 29248/50. Class 37. A synchroscope comprises a Hall plate having input terminals at opposite edges for connection to one source of alternating current, means energized from another source of alternating current for producing a magnetic field through the plate at right angles to its plane, output terminals at other opposite edges of the plate, and a zero-centre D.C. measuring instrument connected to the output terminals. A rectangular Hall plate 3 is made of material such as germanium, which exhibits the Hall effect to a high degree. A coil 4 energized from one of the A.C. lines 2 to be synchronized produces a flux which cuts the Hall plate 3 at right angles. The other line 1 to be synchronized is connected to input terminals 5 at the centre of opposite edges of the plate 3. At the centres of the other pair of opposite edges of the plate 3 are output terminals 6 connected to a D.C. instrument 8 of the zero-centre type. A phaseshifting network composed of reactances 9 and a resistance 10 may be provided between the source 1 and the input terminals 5 to obtain a 90-degree phase relation between the input current and field flux of the plate 3 when the line voltages are in phase or 180 degrees out-ofphase. Synchronism is indicated by zero deflection, while deflection to one side or the other indicates lead or lag of the incoming machine.
Patent GB-1167674-A (GB)
Title: X-Ray Film Cassette
Inventor: HAUSS ROBERT MORTIMER
IPC: G03B42/04
Filed: 1968-06-20
Abstract: 1,167,674. X-ray cassette. EASTMAN KODAK CO. 20 June, 1968 [26 June, 1967], No. 29503/68. Heading H5R. [Also in Division G2] In a film cassette 10, comprising a pair of associated plate members 14, 16 having when closed a pair of opposed faces on at least one of which is disposed a resilient pad 24 adapted to apply a substantially uniform pressure over the area of the film sheet arranged in the cassette, a film release means of resilient material, e.g. pad 30, is disposed in or adjacent to the pad 24 and is arranged to be compressed when the cassette is closed, and is adapted to project beyond the general level of the film supporting surface of the pad 24 when the cassette is open. As shown in the Figure, the film release means is preferably a strip of resilient material extending along at least a portion of one edge of the pad which strip has a greater thickness than the pad when the cassette is open. Preferably the plate members are hinged, e.g. by light-tight hinge 18, along one side, and the film release pad extends along the other three sides of the cassette. The strips extending along the sides adjacent the hinged sides preferably extend along only a portion of the distance from the remote edge towards the hinge. The cassette may comprise a set of members 12 forming a pair of rectangular frames around plate members 14, 16, the pair of frame and plate assemblies being hinged at 18, the members 12 being shaped so that the cassette is light-tight when closed, the interlocking portion of at least one pair of the members, e.g. 22 being shaped to provide a latch means for the cassette. An intensifying screen 26 may be attached to and be coextensive with each of the pads 24 and their associated release members 30, so that on opening the cassette the film 28 is automatically released from contact with the intensifying screen.
Patent GB-248824-A (GB)
Title: Improvements in or relating to signalling devices for road vehicles
IPC: B60Q1/34
Filed: 1924-12-09
Abstract: 248,824. Noden, L. Dec. 9, 1924. Road-traffic signals on vehicles; lamp signals; pointers. - In apparatus in which different coloured lights a,re shown simultaneously at front and rear and in which a drum enclosing a light is turned to give different coloured signals, the drum is rotated by an independent spindle provided with a hand actuating member and with a signalling hand. Fig. 2 shows a sectional plan and Fig. 3 a section on the line A-B of the rotatable drum and its operating and locking mechanism, this part of the apparatus being disposed near the driver. The drum consists of a square frame enclosing the source of light and mounted on a horizontal axis J. Coloured glasses are inserted in the four sides, the same colour being used on opposite sides so as to show both to front and rear. The drum is locked in any of its positions by spring-pressed balls M and is turned through bevel gearing H, I from a spindle G carrying an operating member F at one end and a hand S for day signalling at the other. The spindle G is locked in one of its positions by means of a pointer T which slides a sleeve U along the spindle G until a projection AA thereon engages a slot BB in the casing. A screw connection W is provided between the pointer T and the sleeve U. One or more of a group of coloured lamps arranged at the rear of the vehicle is illuminated by connections to a switch EE mounted on the operating spindle G so as to give the same colour indications as the drum.
Patent GB-1254231-A (GB)
Title: Polyester moulding and coating compositions hardening by ultra-violet irradiation
Inventor: FUHR KARL
IPC: C08F2/50
Filed: 1969-06-11
Abstract: 1,254,231. Coated products. FARBENFABRIKEN BAYER A.G. 11 June; 1969 [11 June, 1968], No. 29542/69. Heading B2E. [Also in Division C3] Substrates e.g. glass plates and wood are coated with a composition comprising an unsaturated polyester, a copolymerisable monomeric compound and as a photosensitizer, a benzoin aryl ether of the formula: in which Ar denotes an aromatic radical and R 1  and R 2 , which may be identical or different, each denote a hydrogen atom. a chlorine atom or a methyl group and the coating is hardened by ultra-violet irradiation. The composition may contain synthetic or glass fibres, silicic acid or talc. A wood substrate may first be coated with a nitrocellulose primer. In Example 4, trimethylolpropanediallyl ether is used in the preparation of the polyester.
Patent GB-979263-A (GB)
Title: Process for producing polyoxymethylene of good thermal stability
IPC: C08G2/28
Filed: 1962-08-01
Abstract: 979,263. Irradiating polyoxymethylene. TOYO RAYON KABUSHIKA KAISHA. Aug. 1, 1962 [Aug. 9, 1961], No. 29578/62. Heading C3P. A polyoxymethylene having a viscosity number of at least three is subjected to an ionizing irradiation. The irradiation may take place in a vacuum in a non-oxidizing medium e.g. methanol or toluene using cobalt 60 gamma-ray at between -250‹ and +200‹C. the irradiation dosage being 0À05 to 50 Mrad, preferably 0À2-5 Mrad. After irradiation the polymer may be heated, preferably in a vacuum at 0 to 350‹C. for at least 30 minutes, more preferably at about 200‹C.
Patent GB-988946-A (GB)
Title: Improvements in or relating to sacks
Inventor: WALLER DAVID JOHN
IPC: B65D30/24
Filed: 1961-08-16
Abstract: 988,946. Plastic valve bags. BOWATER RESEARCH & DEVELOPMENT CO. Ltd. Aug. 2, 1962 [Aug. 16, 1961], No. 29635/61. Heading B8K. A valve 20 (Fig. 4) is formed in a flattened gussetted bag of heat-sealable thermoplastics by an extension of the gusset 3, 4 folded in, together with parts of the side walls, about the line 21, 22, 23 to form a sleeve, and welded at 24 to the overlying walls of the bag. The bag illustrated opens to block-bottom form (Fig. 5) closed by a central weld 13. Part of the valve may be cut away at 27, and the outer wall of the sleeve may be welded to the bag bottom. The bag may be of polyvinyl chloride, or of paper coated on one or both sides with a thermoplastic material. The Provisional Specification also describes a block-bottom bag formed from a squared-off length of flattened gussetted tube, by means of an end closure weld and of corner welds at 45 degrees to the sides of the bag and joining each wall of the gusset to its overlying bag wall but not joining the walls of the gusset together.
Patent GB-1037719-A (GB)
Title: A tool for use in assembling conduits and end fittings
Inventor: WILSON JOHN WILLIAM
IPC: B25B27/10
Filed: 1964-07-23
Abstract: 1,037,719. Tools for inserting rings into flexible conduits. SUPERFLEXIT Ltd. Jan. 14, 1965 [July 23, 1964], No. 29683/64. Headings B4K and B4W. A tool for inserting a ring or sleeve into the end of a helically convoluted, flexible conduit 7 comprises two telescopically connected parts, the first part including a handle portion 1, a threaded end portion 9 and a cylindrical portion 5 adapted to carry a ring or sleeve 6, the second part including a cylindrical portion 11 having a reduced portion 12 which is telescopically received in a boring 10 in the part 1, a grubscrew 14 engaging in a part 13 of further reduced diameter in the part 12, and permitting telescopic movement of the parts. In use, the sleeve or ring 6 is placed on the cylindrical part 5 and the tool fully extended, the portion 11 being then inserted in the end of the conduit and the conduit and tool part 11 are grasped by one hand, the handle 1 being then grasped by the other hand and the parts of the tool telescoped so that the endmost thread of the part 9 engages the end of the conduit. The two parts of the tool are then relatively rotated so that the end of the conduit rides up the threaded part 9 and then up the tapered part 8 of the tool which expands the end of the conduit so that the latter passes easily over the sleeve or ring 6. The end of the conduit is cut off square by a knife cutting through the conduit into the groove 4. After removal of the tool, the free end of the conduit projecting beyond the ring or sleeve is turned inwardly around the edge of the ring or sleeve to form an inwardly directed cuff by the tapered end 15 of the tool. In a modification, the tool is not telescopic the end 9 of the tool being screwed into the end of the conduit until the end of the conduit rides over the ring. The end piece 15 is secured to the handle 1 by a grub screw.
Patent GB-453978-A (GB)
Title: Improvements in or relating to extensible dining or like tables
IPC: A47B1/02
Filed: 1935-10-28
Abstract: 453,978. Tables. KANDYA, Ltd., and PULHAM, L. F., Silverdale Road, Hayes, Middlesex. Oct. 28, 1935, No. 29732. [Class 52 (iii)] The centre leaf 9 of a refectory table is removable and may be stowed in slots 7 in the legs 1 on a ledge 8.
Patent GB-182423-A (GB)
Title: Automatic optical-projection apparatus
IPC: G03B23/06
Filed: 1921-11-08
Abstract: 182,423. Mitchell, A. July 1, 1921, [Convention date]. Plates and the like, travelling.-Picture carrying plates 29 are mounted on an intermittinglyrotated table 20, each plate being carried in a frame 26 which is adapted to be pivotally turned about the outer edge of the table into the path of the projecting beam, while the frame carrying the plate last projected is simultaneously returned to its normal position. The table 20 comprises an inner circular plate 22 connected by spokes to a concentric annular plate 21 formed with an annular groove and with radial slots in which the frames 26 normally rest. Each frame 26 comprises a U-shaped member 27, Fig. 5, to which are secured grooved members 28 adapted to receive one of the plates 29. The outer branch of the U is formed with a pivot pin 32 and a projection 85, and the ends of each pivot pin are disposed in the annular groove in the plate 21 beneath the free ends of springs 33. Between each pair of adjacent frames 26 the plate 21 is provided with a radial tooth 67 and these teeth are successively engaged to rotate the table 20 intermittingly by a tooth carried by a bar 65 projecting vertically from a gear wheel 64 driven from a motor 60. The underside of the wheel 64 is formed with a cam 90, adapted to depress once during each revolution of the wheel the free end of a pivoted bar 91 bearing on an arm 14 carried by a spindle 92, arms 15 and 94 carried by this spindle being thus actuated. The arm 15 is connected by a rod 16 to a spring blade 13 carrying a member 12 which serves to detain the frame 26 of the plate 29 being projected, and the member 12 is thus moved to release this frame. The arm 94 is connected by a rod 95 to an obturator 96 which is thus moved into the paths of the projection beam. The bar 65 thereupon engages a lever 80 to operate a rod 82 so that a projection 84 on this rod acts on the projection 85 on the frame 26 of the plate 29 about to be projected and turns the frame on its pivot pin 32 into position for projection. A lever 83 connected to the rod 82 is operated simultaneously to lift the frame 26 of the picture last projected and return it to normal position. The table 20 is held stationary between each movement by a spring bearing on one of the teeth 67.
Patent GB-1520514-A (GB)
Title: Preparation of impregnated fibre webs
IPC: D04D/
Filed: 1976-07-16
Abstract: 1520514 Impregnating fibre webs CHEMISCHE INDUSTRIE AKU-GOODRICH BV 12 July 1976 [16 July 1975] 29798/75 Headings D1L and D2B Aq. latex binder compositions are applied to wet-laid fibrous webs 31 as a foam by projecting the foam from a roll 30 rotating at a distance above the web greater than the thickness of the layer of foam on the roll, suction being applied at 20 to the underside of the web. Foam is applied to the roll 30 from a hopper 32 by a doctor blade 36. Following foam application, the web is dried on rolls (40), (51), (60) and (61) [Fig. 2 (not shown)]. The web is delivered to the foam application station (A) on a screen 16 from the web-making machine having suction pans (17). The foamed composition may be heat-sensitized to set at 25-95C, have a density of 50-150 g/1 and contain 40-60% by wt. solids. The web may have a wt. of 5-600 g/m<SP>2</SP>, be composed of synthetic fibres of length 4-45mm and have a water content of 50-125% by wt.
Patent GB-372690-A (GB)
Title: Improvements in or relating to smokers' ash trays
IPC: A24F19/00
Filed: 1931-10-29
Abstract: 372,690. Smokers' ash-trays. MARS. LAND, J. H. and BANCROFT, G., 2, North Street, Cheetham, Manchester. Oct. 29, 1931, No. 29963. [Class 130.] An ash-tray 7 for use on piano keyboards is mounted in a block 1 carried by rods 2 sliding in holes in a block 3 secured beneath the keyboard, so that the ash-tray can slide beneath the keyboard or can be drawn out to an extent determined by a cross-bar 5 on the end of the rods 2.
Patent GB-248679-A (GB)
Title: Improvements relating to tanks for the treatment of liquids or solids mixed with liquids
IPC: B01D21/06
Filed: 1924-10-03
Abstract: 248,679. Stokes, R. O. Oct. 3, 1924. Gravity-separation apparatus. - A tank of approximately square shape with rounded corners, applicable for the treatment of liquids or solids mixed with liquids is provided with arms 15, which make angles of 120‹ with one another, are rigidly connected at their inner ends to a common axis 25, and have their outer ends carried by bogies running on a rail 21. The arrangement is applicable for collecting sludge to the centre of a settling-tank for sewage, scrapers being attached to the arms 15. One of the bogies is electrically driven. The length of the arms is so chosen relatively to the side of the square that the axis 25 has a circular path and the arms explore the corners of the tank. One form of bogie, Fig. 6, has rollers 27 carried in brackets 28, turning on a vertical pivot 29. Guide rollers 30 bear aganist the track rail 21. The running rollers are driven by bands 33 from reduction gearing in casings 34. The shafting comprises a Hooke's joint 35 and is driven by a coupling 36 from a motor 37. Another form of bogie, Fig. 7, has a frame 38, a flanged swivelling roller 41 and a second rail roller 40, unsymmetrically placed relativelv to the roller 41. Between the rollers 40, 41 is a bracket 42 carrying rollers 43 which bear against the side of the rail.
Patent GB-1009115-A (GB)
Title: Improvements in and relating to gas turbine plants
Inventor: KRONOGARD SVEN-OLOF
IPC: F02C3/10
Filed: 1962-08-03
Abstract: 1,009,115. Gas turbine engines; combustion chambers. VOLVO A.B. Aug. 3, 1962, No. 30004/62. Headings F1G and F1L. A gas turbine plant comprises a compressor, a combustion chamber and at least one turbine, the compressor and the turbine or turbines being disposed within an outer casing which is substantially symmetrical with respect to the axis of rotation, the casing having radial openings for air discharged from the compressor, radial openings for the combustion gases discharged from the combustion chamber, and radial outlet openings for the gases discharging from the turbine. The compressor and turbine or turbines are complete units and have gas ducts connected to the respective openings of the outer casing, there being guide surfaces in the outer casing for centring the units therein. The engine shown in Fig. 4 is of the type comprising a separate power turbine which in fact comprises two contra-rotating turbine wheels 7, 11. The engine comprises a centrifugal type air compressor 2a, 2 which is mounted on a shaft 4 and is driven by a radial inward flow turbine 3, 3a. The compressor, compressor turbine and power turbine are complete units with casings and are disposed within an outer casing I which is symmetrical about the engine axis, the compressor and turbines being supported therein at 15, 16, 17, 18, 19. The air discharged from the compressor passes into a diffuser 30 and then through outlets 21 in the outer casing 1 into a space defined between the casing 1 and a surrounding hood member 24. The air is then caused to flow downwardly through the disc 27 of a rotary regenerative heat exchanger, the disc being mounted in a horizontal plane. The preheated air then enters the air jacketed type combustion chamber 32, into which fuel is injected at 36, the resulting combustion gases discharging into a volute 39 which communicates with an opening 22 in the casing 1. The gases are then guided by guide vanes 40 on to the rotor blades 3, 3a of the compressor turbine, the gases then being guided by interstage guide vanes 41 on to the blades 7, 11 of the contra-rotating rotors of the power turbine. The gases then discharge through an outlet 23 in the outer casing 1 to enter the space between the casing and the hood member 24, the gases being guided by a duct 44 to flow radially outwardly through the disc 27 of the rotary regenerative heat exchanger, the gases finally discharging through an outlet 45. The rotary heat exchanger is driven by means of a hydraulic motor 29 which is supplied with fluid from a pump driven from the shaft 4 of the compressor turbine. The power turbine drives the output shaft through epicyclic gearing.
Patent GB-1496027-A (GB)
Title: Photographic support materials
IPC: G03C1/79
Filed: 1975-07-17
Abstract: 1496027 Antistatic layers EASTMAN KODAK CO 17 July 1975 [24 July 1974 16 April 1975] 30042/75 Heading G2C [Also in Division B 12] A photographic base material has an antistatic layer formed from a water-soluble film-forming polymeric anionic polyelectrolyte in free acid form, a water-soluble film-forming cross-linkable polymeric binder and an acid-acting cross-linking agent for the polymeric binder. The support may be a polymeric film e.g. of cellulose nitrate, cellulose acetate, polyvinyl acetal, polycarbonate, polystyrene or polyester. Preferred is biaxially stretched and heat-set polyethylene terephthalate film. Photographic papers such as those coated with styrene polymers, cellulose ester polymers, linear polyesters and polyolefins such as polyethylene or polypropylene may also be employed. In addition to the antistatic layer one or more radiationsensitive image-forming layers may be present. The water-soluble polyelectrolyte may be a polymeric sulphonic acid particularly polystyrene sulphonic acid, other useful materials are polyvinyl sulphonic acid, polyacrylic acid, polymethacrylic acid, vinyl methyl ether/maleic anhydride copolymer, vinyl ethyl ether/maleic anhydride copolymer, styrene/ maleic anhydride copolymer, (each of these at least partially converted to the free acid form), itaconic acid and crotonic acid copolymers with styrene, citraconic acid/methyl acrylate copolymer and polyvinyl phosphonic acid. Suitable binder materials are polyacrylamide, polyvinyl pyrrolidone, acrylamide/vinyl acetate copolymer, hydroxymethyl cellulose, hydroxyethyl cellulose, and hydroxymethyl hydroxyethyl cellulose. Suitable cross-linking agents are, melamine-formaldehyde resins, urea-formaldehyde resins, tetra ethyl ortho silicate, dialdehyde starch, zirconium nitrate, 2  3-dihydroxy-1,4-dioxane, glutaraldehyde and trimethylol phenol. Colloidal silica may be included in the antistatic layer in amount constituting a major proportion of the layer. The substrate, particularly when it is a polyolefin coated paper, may be treated by cornona discharge before application of the antistatic coating or, particularly in the case of polyester films, a subbing layer of which several are specified may be first applied. In one embodiment of the invention the photographic material may contain therein or in an adjacent layer a silver halide developing agent, of which several are specified. To prevent staining in the photo-sensitive layers small quantities of hydrogen peroxide may be included in the antistatic coating composition.
Patent GB-894606-A (GB)
Title: Improved polishing composition
IPC: C09K3/30
Filed: 1959-09-03
Abstract: A polishing composition comprises by weight 0,1 to 25 parts of a propellent and 99,9 to 75 parts of a polishing composition consisting essentially of (by wt.): 10 to 30% of a finely divided abrasive, 5 to 16% of a wax, 2 to 12% of a dialkyl-polysiloxane, 40 to 75% of a hydrocarbon solvent, 1 to 4% of an ethylene glycol monoalkyl ether having 1 to 7 C atoms in the alkyl group, and 1 to 10% of an amorphous oleophilic thickener dispersible in the solvent. Ingredients specified are: waxes-paraffin, polyethylene and oxidized polyethylene, microcrystalline and oxidized micro-crystalline waxes, carnauba, beeswax, hydrogenated castor oil, ouricury and petrolatum; siloxanes-dimethylpolysiloxane; solvents-mineral spirits; abrasives-diatomaceous earth and alumina; propellents-nitrous oxide, carbon dioxide, isobutane, dichlorodifluoromethane, and dichlorotetrafluoroethane; thickeners-Na, Al, Zn and Pb oleates, the dimethyldioctadecyl salt of montmorillonite clay, colloidal silica and aluminium naphthenate; glycol ethers-ethylene glycol monobutyl ether.  A small amount of isoamyl acetate may also be added. Examples are given.  Uses-for polishing household enamelware and car bodies.  U.S.A. Specification 2,524,590 is referred to.
Patent GB-739274-A (GB)
Title: Improvements in devices for fitting branch connections to pipes
Inventor: BAKER RICHARD GEORGE
IPC: F16L41/06
Filed: 1952-11-27
Abstract: 739,274. Connecting branch pipes to mains. COAL INDUSTRY (PATENTS), Ltd. Nov. 27, 1953 [Nov. 27, 1952], No. 30084/52. Class 99 (1). [Also in Group XXII] In a device for fitting branch connections to pipes, the connection 2 has one or more side branches 1, means for securing the connection to a pipe P, and gear means 15, 18, 20, 12 for automatically feeding a drill 7 into the pipe at a rate dependent upon its speed of rotation. The device is used for tapping a high-pressure main for fire fighting. A collar 22 retains the drill if the feed mechanism is removed. The saddles for securing the connection to the pipe may be clamped by bolts 4 or by chains provided with screwed tensioning bolts. A double packing washer 5, 27, Fig. 4, enables a water-tight connection to be made to pipes varying in diameter. An emergency set may be packed in a case comprising the device, a hydrant, a wrench, a handle, a selection of saddles and pipediameter gauges.